Guide to Building Prefab and Modular Homes in San Antonio
Our guide to building prefab and modular homes in San Antonio, Texas addresses key points of building in San Antonio as well as surrounding towns like Terrell Hills, Hill Country Village, Shavano Park, and Boerne as well as answers questions that you may have about the prefab and modular home building process. In this guide, we address general questions about the process such as, “why should I build a prefab home in San Antonio?” or “how much will it cost to build a prefab home in Shavano Park or Terrell Hills?’ and outline key decisions that you must make along the way.
Below, you can find our answers to these questions as well as a breakdown of the economics of a prefab home built in San Antonio including the suburbs of Terrell Hills, Hill Country Village, Shavano Park, and Boerne. For more project-specific guidance, connect with one of our prefab home experts for free here.
Why Might You Want to Build a Prefab Home in San Antonio, Texas including Terrell Hills, Hill Country Village, Shavano Park, and Boerne
Quick Build Times - prefab and modular homes are manufactured off-site and assembled at the final build site which allows for multiple steps of the project to be completed simultaneously and more efficiently than a traditional home build. This often results in shorter build times than traditional, site-built homes.
Cost Controlled - using a highly controlled build process (homes are manufactured in climate-controlled production and cutting facilities), unforeseen cost overruns can be better managed leading to reduced overall cost.
Sustainable & Modern - many of the prefab and modular home manufacturers that serve central and southern Texas offer homes that are well-insulated and energy efficient
Key Decisions to Make When Building a Prefab House in San Antonio
Home Location - while the initial cost to build a prefab home may be rather high in San Antonio and suburbs like Terrell Hills, Hill Country Village, Shavano Park, and Boerne, a newly-built prefab home in these areas can be a sound long-term investment as new construction generally sells for significantly more than existing homes. When considering where exactly to build your home, you should be mindful of a few things that could affect your project:
Slope of lot - steep hills can make it difficult to build most pre-designed prefabs, and may require a custom designed and engineered home
Set back requirements which can limit the buildable area of your property
Floor area ratio or other zoning protocols that may affect the possible size of the home
Whether or not your city requires a design review
Custom vs. Standard - While most builders offer a set of pre-designed floor plans, while some also offer options for partial or total home customization. Other builders may specialize in custom prefab home designs. If you live on a tricky lot (uneven terrain, small-lot size, etc.) you may face a limited offering of standard home designs that are suitable for your home build
Modular vs. Kit Home v.s. Panelized - While all three of these construction techniques qualify as prefab home building techniques, there are nuances that you should know when building your own prefab house. These prefab home styles include:
Modular - homes are made up of multiple box-like modules. These modules are fully manufactured and assembled off-site and consist of floors, walls, ceilings, wiring, plumbing, and internal fixtures. After being assembled in an off-site facility, they are shipped to your desired location and the modules are connected and fastened to the foundation. Modular construction is one of the most affordable and quickest prefab building techniques due to the high degree of work completed off-site.
Kit Home - all materials and components necessary for building a home are pre-measured, cut, and delivered to the build site. In some cases, an owner builder can assemble the kit home themselves as a cost-saving method.
Panelized - the home’s structural components: walls, floor, ceiling, are manufactured separate from one another in an off-site location. From there, they are shipped and constructed at the final site like a traditional build. While somewhat similar to modular construction, panelized building offers more flexibility in the home build process.
Some builders advertise using Structural Insulated Panels (SIPs) which are a 2-in-1 combination of high-efficiency insulation and structural panels. This allows for the creation of a quick, energy-efficient prefab home.
Architect/manufacturer vs. All-in Company - There are many steps in the prefab home build process. Major steps include land acquisition, home design, manufacturing, and assembly. When selecting a company for your prefab home, you should also pay attention to the services your company offers. In some cases the company you choose may only offer a home design and therefore sub-contract out the manufacturing process, though this is not as common as most companies offer both home design and manufacturing. This type of company however, still leaves you responsible for acquiring land and later finding a local builder to complete necessary site work and finish your home at the project site. It is worth noting that there are several companies that offer all-in-one services and can assist you in all stages of the home-build process including design, manufacturing, site work, and finishing your home.
Financing your home - unless you are planning to pay for your home in cash, you are likely going to need outside financing for your prefab home. The two most common ways of financing a prefab home build are:
construction loan - a short term loan that you can refinance once construction is complete
temp to perm loan - a construction loan for the duration of construction that converts to a normal mortgage once your house is finished. The advantage of these loans is you only have one mortgage close vs. two with just a construction loan.
These methods usually allow you to finance both the land purchase and the construction of your home however, the underwriting and approval process on these loans can be lengthy (60+ days) as the bank is not only underwriting you as a borrower, but also the viability of your building plans. To get land more quickly, buyers will often pay cash for their building lot and then the lender will credit the land purchase as a down payment percentage on the purchase.
If you’re looking to purchase an ADU (accessory dwelling unit) or tiny home, then you may want to consider a personal loan:
Many personal lenders allow you to borrow up to $100k with no down payment
These loans are typically amortized over a shorter period than mortgages (up to 12 years)
These loans typically don’t underwrite the property and instead underwrite you as a borrower
Many of the best personal lenders are online and serve almost the entire country
The time to get approved for a personal loan is generally pretty fast (as little as a day to up to a couple weeks)
San Antonio Prefab Home FAQs
How much will it cost to build a prefab house in San Antonio, Texas?
While certain variables such as location, builder, and floor plan will affect the total cost of building your home, it is our experience that the final cost of your prefab will range between $400 - $600+ (as of December, 2024).
Is a prefab home a good investment?
Yes, in areas where the total cost of building your prefab home (land cost + building costs) is less than the average dollar per square foot sales price of homes in your neighborhood i.e. you are able to sell your home for more than it cost to build it. In San Antonio and suburbs like Terrell Hills, Hill Country Village, Shavano Park, Boerne, the break even point is between $240 - 300 per square foot. The break-even point is closer to $240 within the city limits of San Antonio and in higher-end areas like Terrell Hills and Hill Country Village, the break-even point is closer to $300 per square foot.
Can I finance a prefab home in San Antonio, Terrell Hills, Hill Country Village, Shavano Park, Boerne, and other areas of South-Central Texas?
Yes. The most common way to finance a prefab home is a temp to perm loan. This financing method starts out as a loan for the construction of your home and converts to a mortgage once your home is completed. Another financing option is a construction loan which is a short-term loan that you then refinance once the construction process is finished.
What do the economics of an investment in a prefab home look like?
Our spreadsheet (below) is an example of what the costs and potential benefits of a prefab home investment might look like. While there may be high up-front costs, it is likely there will be a sizable return on your investment.
| Item | Unit | San Antonio, Texas | Terrell Hills, Texas | Boerne, Texas | Notes |
|---|---|---|---|---|---|
| Cost To Build | |||||
| Cost of lot including closing costs & buyers agent | $ | 45,000 | 185,000 | 50,000 | |
| Cost of prefab home + construction | $ | 550,000 | 600,000 | 500,000 | |
| Loan Rate | 4.50% | 4.50% | 4.50% | ||
| Loan | $ | 32,130 | 42,390 | 29,700 | 4.5% APR (interest only), 18 months project time, 20% down |
| Value of tax deduction | $ | -11,246 | -14,837 | -10,395 | Assumes income to deduct and 35% marginal tax rate |
| Total cost to build | $ | 615,885 | 812,554 | 569,305 | |
| ARV (after repair value) | This is the term for post-construction value | ||||
| $ per sqft comps for new construction | $ | 245 | 300 | 260 | |
| Size of new home | Sqft | 2,750 | 3,000 | 2,500 | |
| Cost to buy similar home | $ | 673,750 | 900,000 | 650,000 | |
| Return On A Flip | |||||
| Sale price | $ | 673,750 | 900,000 | 650,000 | |
| Cost to Build | $ | $615,885 | $812,554 | $569,305 | |
| Broker Fees | $ | $40,425 | $54,000 | $39,000 | 6% |
| Closing costs | $ | $13,475 | $18,000 | $13,000 | 2% |
| Profit before taxes | $ | 3,965 | 15,446 | 28,695 | |
| PLEASE NOTE: THESE MODELS ARE NOT GUARANTEES AND SHOULD NOT BE CONSIDERED FINANCIAL ADVICE. THEY ARE FOR EDUCATIONAL PURPOSES ONLY AND PURELY ILLUSTRATIVE EXAMPLES OF POTENTIAL BUYING SCENARIOS. BUYERS SHOULD DO THEIR OWN DILIGENCE BEFORE MAKING ANY PURCHASE. | |||||
How long will it take?
The answer to this question depends a lot on your particular location. Your city’s permitting and building process will play a large role in determining the time frame for your build. In total, the build process can take between 1-2 years and maybe longer if there is a design review process.
Planning Departments of San Antonio:
Reputable Prefab Home Builders that Serve San Antonio and South-Central Texas:
Texas-based company offering four styles of ADUs and tiny homes with turn-key services throughout Central Texas
All-in-cost: $200 - $250+ per sqft
Offers 12 contemporary style homes, ranging in size from 550 sqft to 2300 sqft.
All-in-cost: $165 - $250 per sqft
Has over 51 models of homes all featuring a beautiful timber frame design, including bungalows, cottages, contemporary designs, and more.
All-in-cost: $300 - $350 per sq ft
Offers 3 home designs, though the main feature is their weeHouse, a rectangular unit that can be configured in a number of ways to achieve a custom design.
All-in-cost: $250 - $490 per sq ft
With over 70 years of experience and 59 model designs, this company builds a variety of different home styles and sizes.
All-in-cost: $290 - $420 per sq ft
Features a customizable studio home with options ranging from full glass walls accent walls, solar packages, and murphy beds.
All-in-cost: $323 per sq ft
Has over 10 models of cylindrical homes, featuring multi-story decks and 360 degree views.
All-in-cost: $180 - $400 per sqft
Has 13 home models, all with a modern boxy aesthetic.
All-in-cost: $260 - $390 per sqft
Additional Resources for Building Prefab Homes in the San Antonio Area
For more specific help with your project, we have developed a series of construction type-specific guides. For more common prefab construction methods, we have guides to modular homes for sale in Texas, site-built custom homes in Texas & kit homes for sale in Texas. For more alternative housing types, we have guides on shipping container homes for sale in Texas & tiny homes for sale in Texas. And for value oriented projects, we have created a resource for manufactured homes for sale in Texas.
